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  <div class="headertitle"><div class="title">Ipopt::SparseSymLinearSolverInterface Class Reference<span class="mlabels"><span class="mlabel">abstract</span></span></div></div>
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<p>Base class for interfaces to symmetric indefinite linear solvers for sparse matrices.  
 <a href="classIpopt_1_1SparseSymLinearSolverInterface.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>&gt;</code></p>
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  <img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for Ipopt::SparseSymLinearSolverInterface:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-types" name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:ab41b34870b99ed44069b00fccead7c14" id="r_ab41b34870b99ed44069b00fccead7c14"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#ab41b34870b99ed44069b00fccead7c14">EMatrixFormat</a> { <br />
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<br />
 }</td></tr>
<tr class="memdesc:ab41b34870b99ed44069b00fccead7c14"><td class="mdescLeft">&#160;</td><td class="mdescRight">Enum to specify sparse matrix format.  <a href="classIpopt_1_1SparseSymLinearSolverInterface.html#ab41b34870b99ed44069b00fccead7c14">More...</a><br /></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a667325ec88127e074ae76458d3500da3" id="r_a667325ec88127e074ae76458d3500da3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a667325ec88127e074ae76458d3500da3">InitializeImpl</a> (<a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1OptionsList.html">OptionsList</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">options</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> std::string &amp;<a class="el" href="classIpopt_1_1DependentResult.html">prefix</a>)=0</td></tr>
<tr class="memdesc:a667325ec88127e074ae76458d3500da3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Implementation of the initialization method that has to be overloaded by for each derived class.  <br /></td></tr>
<tr class="separator:a667325ec88127e074ae76458d3500da3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr><td colspan="2"><div class="groupHeader">Constructor/Destructor</div></td></tr>
<tr class="memitem:a06ff50276cff9340bf50940a62fd41ad" id="r_a06ff50276cff9340bf50940a62fd41ad"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a06ff50276cff9340bf50940a62fd41ad">SparseSymLinearSolverInterface</a> ()</td></tr>
<tr class="separator:a06ff50276cff9340bf50940a62fd41ad"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a10b5a695a491500c5a4f103114fb6ec6" id="r_a10b5a695a491500c5a4f103114fb6ec6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a10b5a695a491500c5a4f103114fb6ec6">~SparseSymLinearSolverInterface</a> ()</td></tr>
<tr class="separator:a10b5a695a491500c5a4f103114fb6ec6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr><td colspan="2"><div class="groupHeader">Methods for requesting solution of the linear system.</div></td></tr>
<tr class="memitem:a3428ecd1c82262764d1ded8dc2119549" id="r_a3428ecd1c82262764d1ded8dc2119549"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a4cd69d3019b82e511236cb759033224b">ESymSolverStatus</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a3428ecd1c82262764d1ded8dc2119549">InitializeStructure</a> (<a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> <a class="el" href="classIpopt_1_1DependentResult.html">dim</a>, <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> <a class="el" href="classIpopt_1_1DependentResult.html">nonzeros</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *<a class="el" href="classIpopt_1_1DependentResult.html">ia</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *<a class="el" href="classIpopt_1_1DependentResult.html">ja</a>)=0</td></tr>
<tr class="memdesc:a3428ecd1c82262764d1ded8dc2119549"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method for initializing internal structures.  <br /></td></tr>
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<tr class="memitem:aeb751e5f0902ec04f8c86232fbaa24b8" id="r_aeb751e5f0902ec04f8c86232fbaa24b8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#ab75ce5f2ad60aa86e4dff723998e653f">Number</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#aeb751e5f0902ec04f8c86232fbaa24b8">GetValuesArrayPtr</a> ()=0</td></tr>
<tr class="memdesc:aeb751e5f0902ec04f8c86232fbaa24b8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Method returning an internal array into which the nonzero elements (in the same order as ja) will be stored by the calling routine before a call to MultiSolve with a new_matrix=true (or after a return of MultiSolve with SYMSOLV_CALL_AGAIN).  <br /></td></tr>
<tr class="separator:aeb751e5f0902ec04f8c86232fbaa24b8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abb894fd70f83310a1c39ab7242efdf2a" id="r_abb894fd70f83310a1c39ab7242efdf2a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a4cd69d3019b82e511236cb759033224b">ESymSolverStatus</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#abb894fd70f83310a1c39ab7242efdf2a">MultiSolve</a> (<a class="el" href="classIpopt_1_1DependentResult.html">bool</a> <a class="el" href="classIpopt_1_1DependentResult.html">new_matrix</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *<a class="el" href="classIpopt_1_1DependentResult.html">ia</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *<a class="el" href="classIpopt_1_1DependentResult.html">ja</a>, <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> <a class="el" href="classIpopt_1_1DependentResult.html">nrhs</a>, <a class="el" href="namespaceIpopt.html#ab75ce5f2ad60aa86e4dff723998e653f">Number</a> *<a class="el" href="classIpopt_1_1DependentResult.html">rhs_vals</a>, <a class="el" href="classIpopt_1_1DependentResult.html">bool</a> <a class="el" href="classIpopt_1_1DependentResult.html">check_NegEVals</a>, <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> <a class="el" href="classIpopt_1_1DependentResult.html">numberOfNegEVals</a>)=0</td></tr>
<tr class="memdesc:abb894fd70f83310a1c39ab7242efdf2a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Solve operation for multiple right hand sides.  <br /></td></tr>
<tr class="separator:abb894fd70f83310a1c39ab7242efdf2a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a02e09c0f187cb7718b07c351112e74cd" id="r_a02e09c0f187cb7718b07c351112e74cd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a02e09c0f187cb7718b07c351112e74cd">NumberOfNegEVals</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a> =0</td></tr>
<tr class="memdesc:a02e09c0f187cb7718b07c351112e74cd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of negative eigenvalues detected during last factorization.  <br /></td></tr>
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<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr class="memitem:ad02523508b8b71914b4e318a582e8bca" id="r_ad02523508b8b71914b4e318a582e8bca"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#ad02523508b8b71914b4e318a582e8bca">IncreaseQuality</a> ()=0</td></tr>
<tr class="memdesc:ad02523508b8b71914b4e318a582e8bca"><td class="mdescLeft">&#160;</td><td class="mdescRight">Request to increase quality of solution for next solve.  <br /></td></tr>
<tr class="separator:ad02523508b8b71914b4e318a582e8bca"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a19b3c3b0daec34ff3c44e9d79f3b3b5d" id="r_a19b3c3b0daec34ff3c44e9d79f3b3b5d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a19b3c3b0daec34ff3c44e9d79f3b3b5d">ProvidesInertia</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a> =0</td></tr>
<tr class="memdesc:a19b3c3b0daec34ff3c44e9d79f3b3b5d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Query whether inertia is computed by linear solver.  <br /></td></tr>
<tr class="separator:a19b3c3b0daec34ff3c44e9d79f3b3b5d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acdaeb282c301a02371ec206cb0c8277a" id="r_acdaeb282c301a02371ec206cb0c8277a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#ab41b34870b99ed44069b00fccead7c14">EMatrixFormat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#acdaeb282c301a02371ec206cb0c8277a">MatrixFormat</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a> =0</td></tr>
<tr class="memdesc:acdaeb282c301a02371ec206cb0c8277a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Query of requested matrix type that the linear solver understands.  <br /></td></tr>
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<tr><td colspan="2"><div class="groupHeader">Methods related to the detection of linearly dependent</div></td></tr>
<tr><td colspan="2"><div class="groupText"><p>rows in a matrix </p>
</div></td></tr>
<tr class="memitem:a437afeb947fb9c081a69ddebb3bd70fd" id="r_a437afeb947fb9c081a69ddebb3bd70fd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a437afeb947fb9c081a69ddebb3bd70fd">ProvidesDegeneracyDetection</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="memdesc:a437afeb947fb9c081a69ddebb3bd70fd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Query whether the indices of linearly dependent rows/columns can be determined by this linear solver.  <br /></td></tr>
<tr class="separator:a437afeb947fb9c081a69ddebb3bd70fd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac0acf21743d7d571959bd5b432d2d58f" id="r_ac0acf21743d7d571959bd5b432d2d58f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a4cd69d3019b82e511236cb759033224b">ESymSolverStatus</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#ac0acf21743d7d571959bd5b432d2d58f">DetermineDependentRows</a> (<a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *, std::list&lt; <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> &gt; &amp;)</td></tr>
<tr class="memdesc:ac0acf21743d7d571959bd5b432d2d58f"><td class="mdescLeft">&#160;</td><td class="mdescRight">This method determines the list of row indices of the linearly dependent rows.  <br /></td></tr>
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<tr class="inherit_header pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classIpopt_1_1AlgorithmStrategyObject')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html">Ipopt::AlgorithmStrategyObject</a></td></tr>
<tr class="memitem:aa2cb1ac4ea5b97c9283bc0fdb71da1d1 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_aa2cb1ac4ea5b97c9283bc0fdb71da1d1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#aa2cb1ac4ea5b97c9283bc0fdb71da1d1">Initialize</a> (<a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1Journalist.html">Journalist</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">jnlst</a>, <a class="el" href="classIpopt_1_1IpoptNLP.html">IpoptNLP</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">ip_nlp</a>, <a class="el" href="classIpopt_1_1IpoptData.html">IpoptData</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">ip_data</a>, <a class="el" href="classIpopt_1_1IpoptCalculatedQuantities.html">IpoptCalculatedQuantities</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">ip_cq</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1OptionsList.html">OptionsList</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">options</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> std::string &amp;<a class="el" href="classIpopt_1_1DependentResult.html">prefix</a>)</td></tr>
<tr class="memdesc:aa2cb1ac4ea5b97c9283bc0fdb71da1d1 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="mdescLeft">&#160;</td><td class="mdescRight">This method is called every time the algorithm starts again - it is used to reset any internal state.  <br /></td></tr>
<tr class="separator:aa2cb1ac4ea5b97c9283bc0fdb71da1d1 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac624e5a883f5c655cb0abbaa24eafcf9 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_ac624e5a883f5c655cb0abbaa24eafcf9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#ac624e5a883f5c655cb0abbaa24eafcf9">ReducedInitialize</a> (<a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1Journalist.html">Journalist</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">jnlst</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1OptionsList.html">OptionsList</a> &amp;<a class="el" href="classIpopt_1_1DependentResult.html">options</a>, <a class="el" href="classIpopt_1_1DependentResult.html">const</a> std::string &amp;<a class="el" href="classIpopt_1_1DependentResult.html">prefix</a>)</td></tr>
<tr class="memdesc:ac624e5a883f5c655cb0abbaa24eafcf9 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="mdescLeft">&#160;</td><td class="mdescRight">Reduced version of the Initialize method, which does not require special <a class="el" href="namespaceIpopt.html" title="This file contains a base class for all exceptions and a set of macros to help with exceptions.">Ipopt</a> information.  <br /></td></tr>
<tr class="separator:ac624e5a883f5c655cb0abbaa24eafcf9 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af2d972f86eec83a96682bd6741a1d265 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_af2d972f86eec83a96682bd6741a1d265"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#af2d972f86eec83a96682bd6741a1d265">AlgorithmStrategyObject</a> ()</td></tr>
<tr class="memdesc:af2d972f86eec83a96682bd6741a1d265 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="mdescLeft">&#160;</td><td class="mdescRight">Default Constructor.  <br /></td></tr>
<tr class="separator:af2d972f86eec83a96682bd6741a1d265 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aea25a150f7488885653c082eca5dab45 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_aea25a150f7488885653c082eca5dab45"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#aea25a150f7488885653c082eca5dab45">~AlgorithmStrategyObject</a> ()</td></tr>
<tr class="memdesc:aea25a150f7488885653c082eca5dab45 inherit pub_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor.  <br /></td></tr>
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<tr class="inherit_header pub_methods_classIpopt_1_1ReferencedObject"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classIpopt_1_1ReferencedObject')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classIpopt_1_1ReferencedObject.html">Ipopt::ReferencedObject</a></td></tr>
<tr class="memitem:a5c0f2208e3ead22bf7c5179381ed8203 inherit pub_methods_classIpopt_1_1ReferencedObject" id="r_a5c0f2208e3ead22bf7c5179381ed8203"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1ReferencedObject.html#a5c0f2208e3ead22bf7c5179381ed8203">ReferencedObject</a> ()</td></tr>
<tr class="separator:a5c0f2208e3ead22bf7c5179381ed8203 inherit pub_methods_classIpopt_1_1ReferencedObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adbbf3aa5307da62ab8224ba599d4bd7a inherit pub_methods_classIpopt_1_1ReferencedObject" id="r_adbbf3aa5307da62ab8224ba599d4bd7a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1ReferencedObject.html#adbbf3aa5307da62ab8224ba599d4bd7a">~ReferencedObject</a> ()</td></tr>
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<tr class="memitem:aac517534e10e36c946aeefc6fe337777 inherit pub_methods_classIpopt_1_1ReferencedObject" id="r_aac517534e10e36c946aeefc6fe337777"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1ReferencedObject.html#aac517534e10e36c946aeefc6fe337777">ReferenceCount</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:aac517534e10e36c946aeefc6fe337777 inherit pub_methods_classIpopt_1_1ReferencedObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa69ecb0f026bd741e2fa84c31d4ec332 inherit pub_methods_classIpopt_1_1ReferencedObject" id="r_aa69ecb0f026bd741e2fa84c31d4ec332"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">void</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1ReferencedObject.html#aa69ecb0f026bd741e2fa84c31d4ec332">AddRef</a> (<a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1Referencer.html">Referencer</a> *<a class="el" href="classIpopt_1_1DependentResult.html">referencer</a>) <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:aa69ecb0f026bd741e2fa84c31d4ec332 inherit pub_methods_classIpopt_1_1ReferencedObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae6c952e7d1a63080dc8f121c008944fc inherit pub_methods_classIpopt_1_1ReferencedObject" id="r_ae6c952e7d1a63080dc8f121c008944fc"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">void</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1ReferencedObject.html#ae6c952e7d1a63080dc8f121c008944fc">ReleaseRef</a> (<a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1Referencer.html">Referencer</a> *<a class="el" href="classIpopt_1_1DependentResult.html">referencer</a>) <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:ae6c952e7d1a63080dc8f121c008944fc inherit pub_methods_classIpopt_1_1ReferencedObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="inherited" name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pro_methods_classIpopt_1_1AlgorithmStrategyObject"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_classIpopt_1_1AlgorithmStrategyObject')"><img src="closed.png" alt="-"/>&#160;Protected Member Functions inherited from <a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html">Ipopt::AlgorithmStrategyObject</a></td></tr>
<tr class="memitem:ada99d79edf49ae7d487ad2c3b63b82af inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_ada99d79edf49ae7d487ad2c3b63b82af"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="classIpopt_1_1Journalist.html">Journalist</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#ada99d79edf49ae7d487ad2c3b63b82af">Jnlst</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:ada99d79edf49ae7d487ad2c3b63b82af inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:add7ef129a410b51b3db14a12dea1fd03 inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_add7ef129a410b51b3db14a12dea1fd03"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1IpoptNLP.html">IpoptNLP</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#add7ef129a410b51b3db14a12dea1fd03">IpNLP</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:add7ef129a410b51b3db14a12dea1fd03 inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a097ab7f6103c3345324a257914fff29a inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_a097ab7f6103c3345324a257914fff29a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1IpoptData.html">IpoptData</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#a097ab7f6103c3345324a257914fff29a">IpData</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:a097ab7f6103c3345324a257914fff29a inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9330e92f6c2fdabb9741d218d9c64f35 inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_a9330e92f6c2fdabb9741d218d9c64f35"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1IpoptCalculatedQuantities.html">IpoptCalculatedQuantities</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#a9330e92f6c2fdabb9741d218d9c64f35">IpCq</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
<tr class="separator:a9330e92f6c2fdabb9741d218d9c64f35 inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5f6310084b90871ee4eec3d89bb407ee inherit pro_methods_classIpopt_1_1AlgorithmStrategyObject" id="r_a5f6310084b90871ee4eec3d89bb407ee"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classIpopt_1_1DependentResult.html">bool</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#a5f6310084b90871ee4eec3d89bb407ee">HaveIpData</a> () <a class="el" href="classIpopt_1_1DependentResult.html">const</a></td></tr>
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</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Base class for interfaces to symmetric indefinite linear solvers for sparse matrices. </p>
<p>This defines the general interface to linear solvers for sparse symmetric indefinite matrices. The matrices can be provided either in "triplet format" for the lower triangular part (like for Harwell's MA27 solver), or in compressed sparse row (CSR) format for the upper triangular part of the symmetric matrix. The latter may equivalently (or better) be referred as compressed sparse column (CSC) format for the lower triangular part.</p>
<p>The solver should be able to compute the inertia of the matrix, or more specifically, the number of negative eigenvalues in the factorized matrix.</p>
<p>This interface is used by the calling objective in the following way:</p>
<ol type="1">
<li>The InitializeImpl method is called at the very beginning (for every optimization run), which allows the linear solver object to retrieve options given in the <a class="el" href="classIpopt_1_1OptionsList.html" title="This class stores a list of user set options.">OptionsList</a> (such as pivot tolerances etc). At this point, some internal data can also be initialized.</li>
<li>The calling class calls MatrixFormat to find out which matrix representation the linear solver requires. The possible options are Triplet_Format, as well as CSR_Format_0_Offset and CSR_Format_1_Offset. The difference between the last two is that for CSR_Format_0_Offset the counting of the element position in the ia and ja arrays starts are 0 (C-style numbering), whereas for the other one it starts at 1 (Fortran-style numbering).</li>
<li>After this, the InitializeStructure method is called (once). Here, the structure of the matrix is provided. If the linear solver requires a symbolic preprocessing phase that can be done without knowledge of the matrix element values, it can be done here.</li>
<li>The calling class will request an array for storing the actual values for a matrix using the GetValuesArrayPtr method. This array must be at least as large as the number of nonzeros in the matrix (as given to this class by the InitializeStructure method call). After a call of this method, the calling class will fill this array with the actual values of the matrix.</li>
<li>Every time later on, when actual solves of a linear system is requested, the calling class will call the MultiSolve to request the solve, possibly for multiple right-hand sides. The flag new_matrix then indicates if the values of the matrix have changed and if a factorization is required, or if an old factorization can be used to do the solve.</li>
</ol>
<p>Note that the GetValuesArrayPtr method will be called before every call of MultiSolve with new_matrix=true, or before a renewed call of MultiSolve if the most previous return value was SYMSOLV_CALL_AGAIN.</p>
<ol type="1">
<li>The calling class might request with NumberOfNegEVals the number of the negative eigenvalues for the original matrix that were detected during the most recently performed factorization.</li>
<li>The calling class might ask the linear solver to increase the quality of the solution. For example, if the linear solver uses a pivot tolerance, a larger value should be used for the next solve (which might require a refactorization).</li>
<li>Finally, when the destructor is called, the internal storage, also in the linear solver, should be released.</li>
</ol>
<p>Note, if the matrix is given in triplet format, entries might be listed multiple times, in which case the corresponding elements have to be added.</p>
<p>A note for warm starts: If the option "warm_start_same_structure" is specified with "yes", the algorithm assumes that a problem with the same sparsity structure is solved for a repeated time. In that case, the linear solver might reuse information from the previous optimization. See <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html" title="Interface to the symmetric linear solver MA27, derived from SparseSymLinearSolverInterface.">Ma27TSolverInterface</a> for an example. </p>

<p class="definition">Definition at line <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html#l00098">98</a> of file <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>.</p>
</div><h2 class="groupheader">Member Enumeration Documentation</h2>
<a id="ab41b34870b99ed44069b00fccead7c14" name="ab41b34870b99ed44069b00fccead7c14"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ab41b34870b99ed44069b00fccead7c14">&#9670;&#160;</a></span>EMatrixFormat</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">enum</a> <a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#ab41b34870b99ed44069b00fccead7c14">Ipopt::SparseSymLinearSolverInterface::EMatrixFormat</a></td>
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<p>Enum to specify sparse matrix format. </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="ab41b34870b99ed44069b00fccead7c14ab4d29f822fbf951b932a3f3173011517" name="ab41b34870b99ed44069b00fccead7c14ab4d29f822fbf951b932a3f3173011517"></a>Triplet_Format&#160;</td><td class="fielddoc"><p>Triplet (MA27) format for lower triangular part. </p>
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<tr><td class="fieldname"><a id="ab41b34870b99ed44069b00fccead7c14a9520e61f42d759dd43457ea9bb0b9b14" name="ab41b34870b99ed44069b00fccead7c14a9520e61f42d759dd43457ea9bb0b9b14"></a>CSR_Format_0_Offset&#160;</td><td class="fielddoc"><p>Compressed sparse row format for upper triangular part, with 0 offset. </p>
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<tr><td class="fieldname"><a id="ab41b34870b99ed44069b00fccead7c14a6ec58bbddc3371494ce6e17ed926c7f3" name="ab41b34870b99ed44069b00fccead7c14a6ec58bbddc3371494ce6e17ed926c7f3"></a>CSR_Format_1_Offset&#160;</td><td class="fielddoc"><p>Compressed sparse row format for upper triangular part, with 1 offset. </p>
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<tr><td class="fieldname"><a id="ab41b34870b99ed44069b00fccead7c14ae633f0ae2434c6d4461cbe23fd641fd2" name="ab41b34870b99ed44069b00fccead7c14ae633f0ae2434c6d4461cbe23fd641fd2"></a>CSR_Full_Format_0_Offset&#160;</td><td class="fielddoc"><p>Compressed sparse row format for both lower and upper parts, with 0 offset. </p>
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<p class="definition">Definition at line <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html#l00102">102</a> of file <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>.</p>

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<h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a06ff50276cff9340bf50940a62fd41ad">&#9670;&#160;</a></span>SparseSymLinearSolverInterface()</h2>

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<p class="definition">Definition at line <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html#l00118">118</a> of file <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a10b5a695a491500c5a4f103114fb6ec6">&#9670;&#160;</a></span>~SparseSymLinearSolverInterface()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> Ipopt::SparseSymLinearSolverInterface::~SparseSymLinearSolverInterface </td>
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<p class="definition">Definition at line <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html#l00121">121</a> of file <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>.</p>

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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a667325ec88127e074ae76458d3500da3">&#9670;&#160;</a></span>InitializeImpl()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a> Ipopt::SparseSymLinearSolverInterface::InitializeImpl </td>
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<p>Implementation of the initialization method that has to be overloaded by for each derived class. </p>

<p>Implements <a class="el" href="classIpopt_1_1AlgorithmStrategyObject.html#a6e5ef59a257a61c928515ea78fd5c148">Ipopt::AlgorithmStrategyObject</a>.</p>

<p>Implemented in <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#a7546f5099489c1170e2706a143f20dc9">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#ae79b16c31635b4cce33db647558fb65b">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#a08b9b2fa8c0f426503363f810405f56b">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#a7fa4469131358f80f68b097da9753f95">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#a07059e451225cff016acde278e870190">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#a35479d2260dd4a24f267ff510e647f7e">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#aae916f5d351adf0b0c972fbcbc2abe81">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#aa821cf1e57f5198fa72f28580c6bb574">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#afa2d9d099f4153e2d93b1f98d9588771">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#ac22739903dfdad5c2627eff5c925f49b">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#a3819a97a4a726657c3c9ad4146691e53">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a8d3abda2c7e95182c5328aac23659562">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a3428ecd1c82262764d1ded8dc2119549">&#9670;&#160;</a></span>InitializeStructure()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a4cd69d3019b82e511236cb759033224b">ESymSolverStatus</a> Ipopt::SparseSymLinearSolverInterface::InitializeStructure </td>
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          <td class="paramname"><em>dim</em>, </td>
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          <td class="paramname"><em>ia</em>, </td>
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          <td class="paramname"><em>ja</em>&#160;</td>
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<p>Method for initializing internal structures. </p>
<p>Here, ndim gives the number of rows and columns of the matrix, nonzeros give the number of nonzero elements, and ia and ja give the positions of the nonzero elements, given in the matrix format determined by MatrixFormat. </p>

<p>Implemented in <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#a84e002daaedddab9359bd252e5363888">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#a22f1448a01820764310ddf248ab98f5b">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a9498bc4d8b9f944657f5e4b25281fa93">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#addb301d2adf363f29c03206b5160d0f2">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#a9e59075b79474c75597548bd7588c852">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#aab3a4cfbabbf3ee2d41cb7997cf0484a">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#aba7c5f30fecb65caa4b948d0ab6ead84">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#a5b7ed4352cbde6330dda56547a2c8067">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#a798ddf052153fdeeeb5ad8951eefb4b3">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#a3ae9b7c0f2d8c3206076e70adb7a1ea8">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#af65f85d609916b1602efcd0a816801d1">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a196e9ad419dfbea6e2719c11011c7678">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#aeb751e5f0902ec04f8c86232fbaa24b8">&#9670;&#160;</a></span>GetValuesArrayPtr()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#ab75ce5f2ad60aa86e4dff723998e653f">Number</a> * Ipopt::SparseSymLinearSolverInterface::GetValuesArrayPtr </td>
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<p>Method returning an internal array into which the nonzero elements (in the same order as ja) will be stored by the calling routine before a call to MultiSolve with a new_matrix=true (or after a return of MultiSolve with SYMSOLV_CALL_AGAIN). </p>
<p>The returned array must have space for at least nonzero elements. </p>

<p>Implemented in <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#a70bf3aa74cdb112948b9905285c0748e">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#a27749361d83a35dc970c9153e59f79fd">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#a1b89a8a1a9c85f48b6bfbfcac3203e1c">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#a271d1aedea0aae8ef123cb7fee25fd93">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#ac12a40fc081016c4cfc59de45b922cb0">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#a6771e0f5fca00184cdc26e41c8c53f11">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#a42d71b99075a7311d479335e17fb2f4b">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a3468270bfacbc2e97f59c035e61abedf">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#a5c91be05d9586be1c35d5fe86fb4bb49">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#a94ec14eb39866bb34de8b3a351f1177a">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#a50a931d01822ef99f5f09a6ec111acf0">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#ae2f407bfb7aa1b7c998c7c460e5c6a22">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#abb894fd70f83310a1c39ab7242efdf2a">&#9670;&#160;</a></span>MultiSolve()</h2>

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<p>Solve operation for multiple right hand sides. </p>
<p>Solves the linear system A * x = b with multiple right hand sides, where A is the symmetric indefinite matrix. Here, ia and ja give the positions of the values (in the required matrix data format). The actual values of the matrix will have been given to this object by copying them into the array provided by GetValuesArrayPtr. ia and ja are identical to the ones given to InitializeStructure. The flag new_matrix is set to true, if the values of the matrix has changed, and a refactorization is required.</p>
<dl class="section return"><dt>Returns</dt><dd>SYMSOLV_SUCCESS if the factorization and solves were successful, SYMSOLV_SINGULAR if the linear system is singular, and SYMSOLV_WRONG_INERTIA if check_NegEVals is true and the number of negative eigenvalues in the matrix does not match numberOfNegEVals. If SYMSOLV_CALL_AGAIN is returned, then the calling function will request the pointer for the array for storing a again (with GetValuesPtr), write the values of the nonzero elements into it, and call this MultiSolve method again with the same right-hand sides. (This can be done, for example, if the linear solver realized it does not have sufficient memory and needs to redo the factorization; e.g., for MA27.)</dd></dl>
<p>The number of right-hand sides is given by nrhs, the values of the right-hand sides are given in rhs_vals (one full right-hand side stored immediately after the other), and solutions are to be returned in the same array.</p>
<p>check_NegEVals will not be chosen true, if <a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#a19b3c3b0daec34ff3c44e9d79f3b3b5d" title="Query whether inertia is computed by linear solver.">ProvidesInertia()</a> returns false. </p>

<p>Implemented in <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#adc46f5a3efa5656374d6c50e931271b0">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#ae54df735a800bf4fbfc58b4e2236d67a">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a57b1cab7f45b4aef85e062b7e62e8084">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#a99215d7b62f2a2887d98d4a0d72286fb">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#acf60ee440ae544ad3f70f5a11f36a1a4">Ipopt::SpralSolverInterface</a>, <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a2886525706e38e3d804a676333992397">Ipopt::WsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#a0f39fce585c58f2639eb0e3c47035a3a">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#a1d640b857d38b93948aff7d853568cc8">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#a7715cbcafe75c97e4305a5756b3c0352">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#a5fbbccaeb26bca59fa68fdc9369f86e8">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#a9eac451e76a7a9354e2eebed6f4b853e">Ipopt::PardisoMKLSolverInterface</a>, and <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#a55446846857b98237c5e3e407d6154e4">Ipopt::PardisoSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a02e09c0f187cb7718b07c351112e74cd">&#9670;&#160;</a></span>NumberOfNegEVals()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> Ipopt::SparseSymLinearSolverInterface::NumberOfNegEVals </td>
          <td>(</td>
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<p>Number of negative eigenvalues detected during last factorization. </p>
<dl class="section return"><dt>Returns</dt><dd>the number of negative eigenvalues of the most recent factorized matrix.</dd></dl>
<p>This must not be called if the linear solver does not compute this quantities (see ProvidesInertia). </p>

<p>Implemented in <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#ab845cba474726087421ef545f7d07c2c">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#ac0b9a4a6fc29cc2f5e43d943433a5aee">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#a12f9ee4c651ac61276e25ca51791b2a7">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#a299c1da26fae8cb33ab474e0b66cf74a">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#ac5293cc2bc5803f7c59591282c38b18a">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#a8a69649419a111e525e4316180858dc8">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#ae22b9579f2d3fe36c19fbfb8a23dcb85">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a0af2f4b72066324eeb4cde5b9a8ad3b2">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#a74e10fab33343e97193556440d7087f3">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#ad60d9f92faa1453a94b3d33e98f2acb9">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#a75d7a32c3feb9c548d5c20444b654f9b">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a7f6915e0bc818d68c2da71ec0ea4d08b">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#ad02523508b8b71914b4e318a582e8bca">&#9670;&#160;</a></span>IncreaseQuality()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a> Ipopt::SparseSymLinearSolverInterface::IncreaseQuality </td>
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<p>Request to increase quality of solution for next solve. </p>
<p>The calling class asks linear solver to increase quality of solution for the next solve (e.g. increase pivot tolerance).</p>
<dl class="section return"><dt>Returns</dt><dd>false, if this is not possible (e.g. maximal pivot tolerance already used.) </dd></dl>

<p>Implemented in <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#aefc4e99c6e2eac05eec037706724875a">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#a621ab9bbc950e73ca33305ae0403dfc4">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#a6c9a9e542a59252c2e35e206b1e62b97">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#a17d98b8b91e11327ab49c5279419ae54">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#ae5cb62d39f2c1154818e6711204d6a5a">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#ae3bd8afa1de2eba07dbed8b1f28f1752">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#a811ca4f96e253ac786860fb6d5ecb9bf">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#abfbb3dc56d6054cc0a4fb7eb3378b2b2">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#aade56ff606e2db70b8be9e23bfa55c2a">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#a2bf17fa0908fa28257562bd9e955b513">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#a5eb28a170fc3f33f66691194daa965ca">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#aac6af142a8c102b3910c3da81a2622dd">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a19b3c3b0daec34ff3c44e9d79f3b3b5d">&#9670;&#160;</a></span>ProvidesInertia()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a> Ipopt::SparseSymLinearSolverInterface::ProvidesInertia </td>
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<p>Query whether inertia is computed by linear solver. </p>
<dl class="section return"><dt>Returns</dt><dd>true, if linear solver provides inertia </dd></dl>

<p>Implemented in <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#afe073934ed6d35f0f0d333e42b62ab14">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#a69a4546449e25a31cc6d877d78114889">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#aa4bc1d6cacd95a72d4498d969de02875">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#a218fcdcab4ae462af7b800e9b7227376">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#aadeb526e00e64ac22eb2b0074457a471">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#a902054cfa8b44c87376f750580810604">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#a2b18b7f466ce6802e4bddec649843c9d">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a9905c9f116e6abe0f1e08a39d9583b39">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#aaddc2666bd8b4f39b61bf04143f93d6f">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#aae1ae7aa6b771c4b61a1d1f289473b0d">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#abb9ffe123b16cd6d7758745dcf0e7a20">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a3e0f9252645b3e65ff13d43b05f1d9fd">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#acdaeb282c301a02371ec206cb0c8277a">&#9670;&#160;</a></span>MatrixFormat()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1SparseSymLinearSolverInterface.html#ab41b34870b99ed44069b00fccead7c14">EMatrixFormat</a> Ipopt::SparseSymLinearSolverInterface::MatrixFormat </td>
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<p>Query of requested matrix type that the linear solver understands. </p>

<p>Implemented in <a class="el" href="classIpopt_1_1IterativePardisoSolverInterface.html#a288a75b224126d03ffb13e7fd0a1bfb5">Ipopt::IterativePardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1IterativeWsmpSolverInterface.html#a6b8466a7bcd17cdc638ee50b7311b025">Ipopt::IterativeWsmpSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma27TSolverInterface.html#a96b494027b27cf487743170026d66c79">Ipopt::Ma27TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma57TSolverInterface.html#ab6297c342fae35e1250991bfba61f240">Ipopt::Ma57TSolverInterface</a>, <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#a4d9c9e22a6a94e8e505bab040b06ab8d">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#aa8d2a5ae22534170b6bf74ff7845cf17">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#af2f0e04298dacb10d7fd39d55cde4529">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a58919accd4c47e4ecfedf4f40c067efc">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoMKLSolverInterface.html#ae51e4f960d3cacad134c9c5dcedda4e2">Ipopt::PardisoMKLSolverInterface</a>, <a class="el" href="classIpopt_1_1PardisoSolverInterface.html#ab39781c0f73584b8972aa3b1250e57aa">Ipopt::PardisoSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#a020d763c27239e50cdf86e8cf0ff2fdb">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a8f91b207d34ce04e7faf89213b656dc2">Ipopt::WsmpSolverInterface</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a437afeb947fb9c081a69ddebb3bd70fd">&#9670;&#160;</a></span>ProvidesDegeneracyDetection()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="classIpopt_1_1DependentResult.html">bool</a> Ipopt::SparseSymLinearSolverInterface::ProvidesDegeneracyDetection </td>
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<p>Query whether the indices of linearly dependent rows/columns can be determined by this linear solver. </p>

<p>Reimplemented in <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#a869edcf34c12f5aba10d85ec3653bfd3">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#af2d1c0d48738a0003f9add771e4a63d2">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#adffbaabf9b7614831b8f5a402c06e8e8">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#afab6cecc19a070b331f1a6b4d00322bc">Ipopt::MumpsSolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#ab6ae108bf645940b26cd0df9d630818c">Ipopt::SpralSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a2a62abd2a635650fcbc0ce24f9780616">Ipopt::WsmpSolverInterface</a>.</p>

<p class="definition">Definition at line <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html#l00240">240</a> of file <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac0acf21743d7d571959bd5b432d2d58f">&#9670;&#160;</a></span>DetermineDependentRows()</h2>

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          <td class="memname"><a class="el" href="classIpopt_1_1DependentResult.html">virtual</a> <a class="el" href="namespaceIpopt.html#a4cd69d3019b82e511236cb759033224b">ESymSolverStatus</a> Ipopt::SparseSymLinearSolverInterface::DetermineDependentRows </td>
          <td>(</td>
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          <td class="paramtype"><a class="el" href="classIpopt_1_1DependentResult.html">const</a> <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> *&#160;</td>
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          <td class="paramtype">std::list&lt; <a class="el" href="namespaceIpopt.html#a5a4a27f325033a0e5d85a4ebc4038b57">Index</a> &gt; &amp;&#160;</td>
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<p>This method determines the list of row indices of the linearly dependent rows. </p>

<p>Reimplemented in <a class="el" href="classIpopt_1_1Ma77SolverInterface.html#a1e80a428be05d6b31d4a8e9d80cd7f1d">Ipopt::Ma77SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma86SolverInterface.html#a0a7b8b943a298d84e5a842aba4525360">Ipopt::Ma86SolverInterface</a>, <a class="el" href="classIpopt_1_1Ma97SolverInterface.html#acc5707d0baa419f7b9f552ea3e968117">Ipopt::Ma97SolverInterface</a>, <a class="el" href="classIpopt_1_1SpralSolverInterface.html#afd4c3a3ad6d83b72df90c2729689082b">Ipopt::SpralSolverInterface</a>, <a class="el" href="classIpopt_1_1MumpsSolverInterface.html#a87f08f29818d2baa26a55caaae43b87f">Ipopt::MumpsSolverInterface</a>, and <a class="el" href="classIpopt_1_1WsmpSolverInterface.html#a3f653e02fb93fcdd74145e5cdf045d25">Ipopt::WsmpSolverInterface</a>.</p>

<p class="definition">Definition at line <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html#l00248">248</a> of file <a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a>.</p>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li>src/Algorithm/LinearSolvers/<a class="el" href="IpSparseSymLinearSolverInterface_8hpp_source.html">IpSparseSymLinearSolverInterface.hpp</a></li>
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